Router Model Version Feature Set Memory (KB) BootFlash BootStrap
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10.1.1.1 1720 12.1(5)T8b, (C1700-SY-M),
32 --N/A-- 12.0(1)T,
10.1.2.1 3640 11.3(11)C, (C3640-IS-M),
64 --N/A-- 11.1(20)AA2,
10.1.3.1 3620 11.3(11)C, (C3620-JS-M),
64 --N/A-- 11.1(4)AX
10.1.4.1 3620 12.1(18)T2, (C3620-JS-M),
64 --N/A-- 11.1(4)AX
10.1.5.1 3640 12.2(13)T, (C3640-JS-M),
128 --N/A-- 11.1(12)AA,